6247209040 has 80 divisors (see below), whose sum is σ = 14726111040. Its totient is φ = 2464394240.

The previous prime is 6247209013. The next prime is 6247209047. The reversal of 6247209040 is 409027426.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 6247208987 and 6247209005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6247209047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495027 + ... + 3496813.

It is an arithmetic number, because the mean of its divisors is an integer number (184076388).

Almost surely, 2^6247209040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6247209040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7363055520).

6247209040 is an abundant number, since it is smaller than the sum of its proper divisors (8478902000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6247209040 is a wasteful number, since it uses less digits than its factorization.

6247209040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 6247209040 is about 79039.2879522583. The cubic root of 6247209040 is about 1841.7415222424.

The spelling of 6247209040 in words is "six billion, two hundred forty-seven million, two hundred nine thousand, forty".